Using Mag. Primers?

[2rott]

I was given a couple thousand Lg. Pistol Mag. primers & want to use them in a very light cowboy load. Either 4.6G Clays or a light Trailboss load with a 200 G lead bullet for my 45colt revolver. All the recipes call for Lg. Pistol primers. How will the Mag. primers affect the loads?

 

[jr45]

Mag primers in lighter loads should not give you any pressure problems. I have been using mag primers only recently and have not noticed any difference as compared to the standards (then again I was not loading max).

 

[JimKirk]

In light cowboy loads .... None!

Heavy loads of slow burning powder/cold temps/ball powders .... Yes

 

[ArchAngelCD]

I agree, just load them up in those light loads without a worry...

 

[Hondo 60]

During the shortage, last winter, I couldn't find small pistol primers.
What I found were small magnum pistol primers.

I used them for 38 spl, 9mm & 357 mag.
As long as you stay under max load, you'll be just fine.

 

[hancjamk]

About six months ago I ran out of large pistol primers. I loaded up some 45acp using large magnum pistol primers using the the same charge I normally use. The only difference that I could tell, was tighter groupings...

 

[kelbro]

About six months ago I ran out of large pistol primers. I loaded up some 45acp using large magnum pistol primers using the the same charge I normally use. The only difference that I could tell, was tighter groupings...

I have seen this too on occasion.